Color

#3fde74

#3fde74
hex#3fde74
rgbrgb(63, 222, 116)
hslhsl(140, 71%, 56%)
oklchoklch(0.796 0.196 150)
Closest name: Green Priestess (#11dd55)Relative luminance 0.5456

Colors that go with #3fde74

Blue, Charcoal and Deep Sky Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#de3fa9

#5ade3f · #3fdec4

#743fde · #de743f

Split-complementary

Open in tool →

#c43fde · #de3f5a

#3f5ade · #de3fa9 · #dec43f

Contrast

#3fde74 as textRatioAAAA largeAAAFix
Aaon white
1.76:1failfailfail
  • AA: use #17873c as the text (4.6:1)
  • AAA: use #11642d as the text (7.28:1)
  • AA: or shift the background to #4f4f4f (4.65:1)
  • AAA: or shift the background to #333333 (7.17:1)
Aaon black
11.91:1passpasspassPasses AAA — no fix needed.

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #3fde74 as the background.

Brands using this color

mcpConnect your agent — build around #3fde74
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #3fde74 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/3fde74-a2beaf-c259d4-1f2d2a-ebf1e9?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md